condition mean min max 12pM Fe,Midday 22.0435 22.0435 22.0435 12pM Fe,Midnight 22.3108 22.0074 22.6142 58pM Fe,Midday 31.2082 31.2082 31.2082 58pM Fe,Midnight 16.615585714285714 0.0 23.0166 233pM Fe,Midnight 26.278033333333333 26.2362 26.3578 1160pM Fe,Midday 15.035728571428573 10.1611 19.3566 1160pM Fe,Midnight 14.6984125 6.26635 27.4882 High carbon,Dark 24.949947333333334 5.59001 43.2578 High carbon,Light 14.920093846153845 0.0 28.4642 Low carbon,Dark 7.16398 7.16398 7.16398 Phloroglucinol 11.363513333333334 6.07774 17.4212 Silicon starvation,12h 25.0842 25.0842 25.0842